Mixed-valence uranium germanate and silicate: Cs x(U VO)(U IV/VO) 2(Ge 2O 7) 2 (x = 3.18) and Cs 4(U VO)(U IV/VO) 2(Si 2O 7) 2

Chun Liang Chen, Quang Bac Nguyen, Chih Shan Chen, Kwang Hwa Lii

研究成果: 雜誌貢獻期刊論文同行評審

23 引文 斯高帕斯(Scopus)

摘要

A new mixed-valence uranium germanate and the silicate analogue have been synthesized under hydrothermal conditions at 600 °C and 165 MPa. Their crystal structures contain infinite -U V-O-U IV/V-O-U IV/V-O-U V- chains that are connected by Ge 2O 7 or Si 2O 7 groups to form a 3D framework with six-ring channels where the Cs + cations are located. Two of the Cs sites in the germanate are partially occupied. Bond-valence-sum calculation and an U 4f X-ray photoelectron spectroscopy study confirm the valence states of the uranium.

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頁(從 - 到)7463-7465
頁數3
期刊Inorganic Chemistry
51
發行號14
DOIs
出版狀態已出版 - 16 7月 2012

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